diff --git a/s1tbx-cloud/src/main/java/org/esa/s1tbx/cloud/opensearch/OpenSearch.java b/s1tbx-cloud/src/main/java/org/esa/s1tbx/cloud/opensearch/OpenSearch.java
index 03d9ae6cd1..2d2d8c3b28 100644
--- a/s1tbx-cloud/src/main/java/org/esa/s1tbx/cloud/opensearch/OpenSearch.java
+++ b/s1tbx-cloud/src/main/java/org/esa/s1tbx/cloud/opensearch/OpenSearch.java
@@ -53,6 +53,10 @@ public OpenSearch(final String host, final String userName, final String passwor
             client.setConnectionManagerTimeout(TIMEOUT);
             client.setSocketTimeout(TIMEOUT);
             client.setMaxConnectionsPerHost(2);
+            if (System.getProperty("https.proxyHost") != null) {
+                client.setProxy(System.getProperty("https.proxyHost"),
+				Integer.parseInt(System.getProperty("https_proxyPort")));
+            }
 
             client.addCredentials(host, null, null,
                                   new UsernamePasswordCredentials(userName, password));